>
Gonorynchiformes (Milkfishes) >
Kneriidae (Shellears)
Etymology: Kneria: From Kner, that studied fishes in the Imperial Museum of Vienna, with Jean Natterer (1817) (Ref. 45335); ruaha: Named for the Ruaha River drainage, Tanzania, where it occurs; noun in apposition (Ref. 26644).
Environment: milieu / climate zone / depth range / distribution range
Écologie
; eau douce démersal. Tropical
Africa: upper reaches of Ndembera and Idodi Rivers and middle and lower reaches of Little Ruaha River(Ruaha River basin) in Tanzania (Ref. 26644).
Taille / Poids / Âge
Maturity: Lm ?  range ? - ? cm
Max length : 57.5 cm SL mâle / non sexé; (Ref. 26644)
Épines dorsales (Total) : 0; Rayons mous dorsaux (Total) : 8 - 11; Épines anales: 0; Rayons mous anaux: 8 - 10. Diagnosis: medium sized, robust species with short head (16.4-22.8% SL) and snout (23.3-28.2% HL); dorsal fin origin just opposite to pelvic fin origin; caudal fin shallowly forked, lobes short (112.7-126.0% TL) and rounded; longest dorsal fin ray 92.9-1333.3% HL (Ref. 26644).
Maximum total length recorded is 68mm; inhabits cool quiet streams; feeds on detritus; no marked spawning period (Ref. 26644).
Life cycle and mating behavior
Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larves
Seegers, L., 1995. Revision of the Kneriidae of Tanzania with description of three new Kneria species (Teleostei: Gonorhynchifromes). Ichthyol. Explor. Freshwat. 6(2):97-128. (Ref. 26644)
Statut dans la liste rouge de l'IUCN (Ref. 130435)
Menace pour l'homme
Harmless
Utilisations par l'homme
Outils
Articles particuliers
Télécharger en XML
Sources Internet
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
Niveau trophique (Ref.
69278): 2.0 ±0.00 se; based on food items.
Fishing Vulnerability (Ref.
59153): Moderate to high vulnerability (48 of 100).